THE ONE THAT WORKS FOR ANYTHING. The Nike Dri-FIT One Tank is the most versatile top, designed for all the ways you work out – from the machines to the mat to the miles. Soft, smooth fabric (made of 100% recycled polyester fibres) comes in a breathable silhouette to keep you cool and dry. Sweat It Out: The breathable design with Nike Dri-FIT technology moves sweat away from your body for quicker evaporation, helping you stay dry and cool. Move with Confidence: Soft, smooth fabric with four-way stretch helps you move without restrictions. Rounded hems give you a little extra coverage. Find It Inside: "Just Do It." print at the interior hem delivers an inspirational message just for you. Slim fit for a tailored feel.